1625672247 has 4 divisors (see below), whose sum is σ = 2167563000. Its totient is φ = 1083781496.

The previous prime is 1625672239. The next prime is 1625672267. The reversal of 1625672247 is 7422765261.

1625672247 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1625672247 - 2³ = 1625672239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1625672199 and 1625672208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625672207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270945372 + ... + 270945377.

It is an arithmetic number, because the mean of its divisors is an integer number (541890750).

Almost surely, 2^1625672247 is an apocalyptic number.

1625672247 is a deficient number, since it is larger than the sum of its proper divisors (541890753).

1625672247 is an equidigital number, since it uses as much as digits as its factorization.

1625672247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541890752.

The product of its digits is 282240, while the sum is 42.

The square root of 1625672247 is about 40319.6260771352. The cubic root of 1625672247 is about 1175.8294422983.

The spelling of 1625672247 in words is "one billion, six hundred twenty-five million, six hundred seventy-two thousand, two hundred forty-seven".